Carbon-paper feeding device for duplicating typewriting machines



Nov. 3,1925;

E. P. KECK CARBON PAPER FEEDING DEVICE FOR DUPLICATING TYPEWRITINGMACHINES Filed July 19,

1.9 3 Sheets-Sheet 1 ATmeA/FX Nov. 3 1925.

E. P. KECK CARBON PAPER FEEDING DEVICE FOR DUPLICATING TYPEWRITINGMACHINES Filed July 19, l923 5 Sheets-Sheet 2 l/vvs/vroe 620-4054}! 134:

Arrae/vEv Nov. 3, 1925.

E. P. KECK CARBON PAPER FEEDING DEVICE FOR DUPLICATING TYPEWRITINGMACHINES Filed July 19, 1925 3 Shee'ps-Sheet 5 Qyvc/vme (mum/0141.; M

' ATTOE/VEF Patented Nov. 3, 1925.

UNITED STATES PATENT OFFICE.

- EDWARD PHILIP KEGK, or CLEVELAND, omo, ASSIGNOR TO ARTHUR s. drum, or

CLEVELAND, OHIO.

CARBON-PAPER FEEDING DEVICE FOR DUPLIGATIKG TYPEWBITING MACHINES.

Application filed July 19, ms. Serial no. 6523509.

To all whomz't may come m:

Be it known that I EDWARD PHILIP Knox, a citizen of the United States,resident of Cleveland, county of Cuyahoga, and State of Ohio, haveinvented new and useful Improvements in Carbon-Paper Feeding Devices forDuplicating Typewriting Ma.-

chines, of which the following is a specification, the principle of theinvention being herein explained,- and the best mode in which I havecontemplated applying that principle, so as to distinguish it from otherinventions. I

My invention relates to carbon paper feeding devices for duplicatingtypewriting machines, its object being to provide means for feeding andmanipulating the carbon-sheets used for making manlfold impressions uponmanifold forms.

The said invention consists of' means herein fully described andparticularly set forth in the claims.

More specifically, my invention consists of a modification of thedevices shown and described and claimed in pending application SerialNo. 634,696, filed April 26, 192-3, by Arthur S. Gilman, the method ofmanipulating manifold forms and carbonsheets by means of the presentinvention, be- 30 ing generally the same as that described and claimedin said above mentioned application.

The annexed drawings and the following description set forth in detailcertain means embodying my invention, the disclosed means, however,constituting but one of the various .mechanical forms to which theprinciple of my invention may be applled.

In the said-annexed drawings Figure 1 re resents a front elevation ofthe .device em odying m invention, showing same attached to tieplaten-carriage of a typewriter, of which latter only a fragmentaryportion is shown.

Fig. 2 re resents a side elevation of said device attac ed to suchplaten-carriage.

Fig. 3 represents a vertical transverse section of the device and takenupon the planes indicated by lines III-III, Fig. 1.

Fig. 4 represents a detailed section taken upon the plane indicated byline IV-IV, Fig. 2.

Figs. 5 and 6 represent sections taken respectively upon the planesindicated by lines V-V, Fig. 4.

Fig. 7 represents a transverse section iaken2upon the plane upon lineVIIVII in ig. 8 represents a transverse detailed section taken upontheplane indicated by. line VIIIVIII in Fig. 2.

Fig. 9 represents a plan of one of the carbon-sheet guides showing acarbon-sheet threaded therethrough.

The disclosed embodiment of my invention is designed to receive amanifold form of'five parts or less and includes an upright frame '1,which is of a form adapted to be attached to the platen-carriage2 ofa'typewritin machine, such attachment belng made in any convenient orsuitable manner. This frame, as illustrated, is shown to consist of twosidemembers 33, a bottom member 4, cross or brace members 55, and a toptransverse member 6 which acts as a guide for leading continuous forms 7from the source of suppl upwardly and then over and downwardly to thetypewriter platen'8 as shown in Fig. 3.- This source of supply (notshown) ma be a multiplic-.

ity of rolls of forms; may e a box of what is known' as fanfold forms,the latter being the term used in, the trade to desi nate forms foldedtransversely and longitu inally, ormay be a box of forms such as areshown, described and claimed in U. S.Patent No. 1,368,929, issued Feb.15, 1921, to

The A. S. Gilman Printing Company. The.

front and back of this member 6 are downwardly curved as shown at 99.

The front portion of the frame 1 is preferably inclined slightly towardthe rear will, the said detent being so arranged that when thrown out ofengagement it'may-' remain so until manually restored.

The other end of the spindleis threaded as at 15 and upon this threadedportion is mounted a square nut 16. This nut projects into the squaredend 17 of a central .bors '18 and carbon-sheet roll 19,. Fig

4. Surrounding the interior portion of the spindle 13 is a helicalspring one end of which issecured to the roll 19 as at 22 in anysuitable or well-known manner. Engaging. the threaded portion of thespindle 1'5 and outwardly beyond the nut 16 is a sto nut 23 which islocked in place by a 100 nut 24.

The brackets 10--10 and other bearings are so arranged that the axis ofsaid spindle is parallel with the inclined front face of the supportingframe 1, as shown in Fig. 2.

Fig. 4, as will be noted, is an axial section of the left-hand roll asviewed from Fig. 1, and the thread on the portion 15 of this s indle isa left-hand thread. Two carbon s eets 25 are wound upon-this left-handroll 19 so as to unwind therefrom in a clockwise direction, so that inunwinding it may nuts.

The helical springs 20 are so wound that when the carbon-sheets areunwound over the rolls, the said springs will oppose the unwinding sothat when the carbonsheets are released the rolls will automaticallywind the latter in.

The spindles 13 furthermore are each provided with an interior shoulder26 which prevents longitudinal displacement of the roll'on its spindle.

Formed integrally with and projecting inwardly from each of the two sidemembers 3-3 are'two lugs 27-27 and 2828, Fig. 1. Each of these lugscarries a fixed stud 29 which projects perpendicularly with reference tothe plane of the front face of the device. These studs have their outerends threaded as shown in Fig. 8 and have their axes located so astopass through the corners of an imaginary rectangle.

The top surfaces of the lugs 27 line in a plane parallel with thedirection of feed of the forms downwardly into the platenroller. v

Upon these studs are removably secured a multiplicity of -carbon sheetguides 30, four in the case illustrated, two on the lefthand pair ofstuds and two on the righthand, pair. The two on the left-hand pairproject laterally to the right and the two on the right-hand pairproject laterally to the left. These guides are supported solely on oneend of these studs so that their other ends are free asshown in Figs. 7and 8.

t at an angle of fort -five degrees with reference to the direction offeed of the form and the slots on'the succeeding guides at right angleswith each other.

The supported ends of the guides are each formed with two pairs of holes3434, by means of which they'may be slipped 'on the studs 29. Byproviding these pairs of holes, the guides ma be adjusted to assumedifferent positions aterally whereby they may be adapted to conform withdifferent widths of manifold forms. As illustrated in Fig. 1,

the adjustment is such as is required for a given form, whose width isequal to the transverse distance between the foreends of two succeedingguides 30. By shifting one of the sets of guides, so asto cause thestuds to engage the other set of holes thereon, it will be seen that theguides may be used in connection with a manifold form of a greaterwidth. By then shifting the other set of guides so that the stud willengage its second pair of holes, a still wider manifold form may be usedin connection with thedevice, all as will be readily understood by thoseskilled in the art. While but two sets of holes are provided in the formof device shown, it will be obvious that additional holes may beprovided as may be reengaged, whereupon the carbon sheets are' unrolledby hand and threaded respectively through slots 32 of the carbon-sheetguides 30, one carbon-sheet passing through but a single slot. In thespecific mechanism shown, Figs. 7 and 8, the uppermost carbonsheet oftheright-hand roll is threaded through the slot'of the uppermost right-'-hand guide and then led downwardly to the.

platen roller. The uppermost carbon-sheet of the left-hand roll is thenthreaded through the slot of the next guide, led downwardly, the secondsheet of the righthand roll is then led through the third guide, andfinally the second sheet of the left-hand roll passed through the slotof the last guide and also led downwardly.

The manifold form strip 9 is then led over the detent wheels 14 and themanifold-form strip and the inter-leaved carbons may then be passedthrough the platen-roller of the type-writing machine and the necessarytypewriting' placed thereon by such machine. After the regulartypewritten matter is produced, the platen-roller is reversed so as tocarry the typewritten forms and carbons back. This reversal iscontinued, as in the case of the device of the above mentionedapplication until the carbon-sheets are resheets forward, during whichoperation the carbon-sheets will remain stationary. Such movement of theplaten-roller is continued until the sheets reach the line at which itis desired to tear them off. This tearing off is accomplished by theusual tearing-off knife 37 which is attached transversely to the frame 1and in its regular position, all as will be readily understood.

The above operation is continued until thos portions of the carbon-sheetwhich have been used, are worn out.

After the wearing out of the portions of the carbon-sheets mentioned,such portions are torn ofi, and suchtearing off is accomplished in thefollowing manner: a

After the completion of the last typewriting operation before thetearing-off is effected, the forms and carbons are backed up aspreviously described until the carbons are released. The detents 14 arethen disengaged. The forms and carbons being then grasped by the fingersso as 'to pinch them, the platen-roller is then rotated to carry bothforms and carbons forward and around the platen-roller. This operationis continued until the extreme ends of the carbon come within a requireddistance from the knife 37 which is about inch.

The detents are then re-engaged and the rotation continued until thetearing-off line is reached, whereupon the forms and carbons are tornoff. The forms and carbons are then backed up until they becomedisengaged from the platen and pressure'rollers. At the moment of suchdisengagement, the nut 16 will not have reached the stop 23 and a smallamount of tension will remain in the coil springs 20 which will causea'continuation of the winding in of the carbons, and their ends to beremoved from the extreme ends of the manifold form, thereby leaving therequired space between such carbon and form ends for properlymanipulating'same as is the case of the mechanism of the above mentionedapplication.

What I claim is:

1. In a device of the class described, the combination of means forguiding a plurality of manifold forms and mounted upon theplaten-carriage of. a typew'riting machine; a carbon-roll mounted uponsaid guiding means laterally thereof, and having its axis extending inthe direction of feed of said forms, a carbon-sheet guide having one endsecured to the form-guide frame; said carbon-sheet guide having a guidinsurface extending at an angle of fortyve degrees, with reference tothe'direction of travel of said forms, whereby the carbon-sheet fromsaid roll may .be fed in such direction of travel and means fortransversely adjusting said carbon-sheet guide to accommodate manifoldforms of various .widths.

2. In a device of the class described, the I combination of a supportingframe; a carbon-sheet rol'l mounted on and at one side of said frame;and a carbon-sheet guide mounted upon said frameand havin a guidingsurface forming an angle ofort -five degrees with reference to the axis0 said roll; said guiding frame being adjustable in the direction'offeeding a'carbon-sheet from ..-bon-sheet roll mounted on and at one sideof said 'frame; and a carbon-sheet guide forming an angle of forty-fivedegrees with reference to the axis of said roll, said carhon-sheet guidebeing adjustable to accommodate manifold forms of various widths.

4. In a device of the class described, the combination of a supportingframe; two carbon-sheet rolls respectively mounted on and at oppositesides of said frame, said rolls having parallel axes; and twocarbon-sheet guides having one end secured to one side of said frame andextending inwardly thereof and havingits other end free whereby they maybe interleaved with manifold forms; each of said guides being formedwith a guiding surface at an angle of fortyfive degrees with referenceto the axes of said rolls: the guiding surface on the respective'carbon-sheet guides being right-angular-ly related to each other. saidcarbonsheet guides being adjustable toward and from forms; each of saidguides being formed a each. other to accommodat manifold forms with aguiding surface at an angle of fortyof various widths.- five degreeswith reference to the axes of 15 5. In a device of the class-described,the said rolls; the guiding surface. on the re I combination of .asupporting frame; two carspective carbon-sheet guides'beingright-anbon-sheeti'olls respectively mounted on and gularly related toeach other; said carbon at opposite sides ,of said frame,- said rollssheet guide being adjustable on said suphaving parallel axes; and twocarbon-sheet porting frame in the direction of feed of 20 guideseach'having one end secured to one the carbon-sheet from said rolls.

10 side of said frame and extending inwardly Signed by me this 30th dayof June, 1923. thereof and having its other end free wherea I by theymay be interleaved with manifold EDWARD PHILIP KEGK.

